Praktische und transparente Rechner für Finanzen, Forstwirtschaft, Wohnen und Entscheidungsfindung. Wählen Sie ein Werkzeug, geben Sie Ihre Annahmen ein und prüfen Sie das Ergebnis.
Diese Werkzeuge dienen der Veranschaulichung. Die Ergebnisse hängen von den eingegebenen Annahmen ab und sind keine Finanz-, Forst- oder Immobilienberatung.
Finanzen und Investitionen
Interactive tool
Compound interest
Estimate growth with regular contributions and recurring compounding.
Enter values and calculate.
Illustration only. Returns, fees, taxes and inflation can materially change the outcome.
Interactive tool
Nominal and real return
Convert a nominal return into purchasing-power growth after inflation.
Enter values and calculate.
Uses a constant-rate scenario, not a forecast.
Interactive tool
CAPM and alpha
Estimate modelled required return and compare it with an observed return.
Enter values and calculate.
CAPM is a model benchmark. Input choice and estimation error matter.
Interactive tool
Historical beta
Estimate beta and regression alpha from paired periodic returns.
Enter values and calculate.
A small or selected sample can be highly misleading. Use matching periods and total returns.
Interactive tool
Fixed-rate bond price
Estimate the present value of coupons and face value at a chosen market yield.
Enter values and calculate.
Excludes credit risk, tax, fees, accrued interest and embedded options.
Strategie und Entscheidungsmodelle
Interactive tool
Payoff matrix explorer
Find best responses, pure-strategy Nash equilibria and the highest joint payoff.
Enter values and calculate.
The result describes the entered model—not every real-world complication.
Forst und Holz
Interactive tool
Swedish site index to productivity
Translate site index into estimated ideal productivity using the Swedish Forestry College system tables.
Enter values and calculate.
Table interpolation is an estimate in m³sk/ha/year. Species, region and site class must match the selected source table.
Interactive tool
Forest-volume factor converter
Apply a documented species- and dimension-specific conversion factor without hiding the assumption.
Enter values and calculate.
No universal factor exists. Obtain the factor from an authoritative table or measurement agreement for the relevant species and dimensions.
Interactive tool
Wood moisture, dry matter and bark scenario
Separate water, dry matter and an optional bark share, then estimate mass at a target moisture.
Enter values and calculate.
Bark share must use the stated dry-matter basis. The model assumes no dry-matter loss during drying.
Interactive tool
Basal area from a sample plot
Calculate measured basal area and expand it to square metres per hectare.
Enter values and calculate.
Measure diameter consistently and use a plot design appropriate for the inventory method.
Interactive tool
Seed-rate estimator
Estimate kilograms of seed per hectare from target establishment and thousand-seed weight.
Enter values and calculate.
A planning estimate only. Variety, seed lot, soil, weather, sowing date and equipment affect establishment.
Interactive tool
Timber offer comparison
Compare two buyer settlements using the same measured quantities and explicit deductions.
Enter values and calculate.
Use the exact assortment, measurement unit, premiums, deductions and VAT treatment from each offer. A higher headline price need not produce the higher net settlement.
Interactive tool
Thinning outcome scenario
Estimate removed standing volume, sale volume, remaining stock and a simplified net result.
Enter values and calculate.
This is a scenario, not a growth forecast. Damage, diameter distribution, quality, roads, fixed mobilisation costs and buyer measurement can materially change the result.
Immobilien und Haushalt
Interactive tool
Home ownership monthly-cost scenario
Separate financing, amortisation, operations and maintenance instead of showing one deceptively simple housing cost.
Enter values and calculate.
Amortisation builds equity but affects monthly cash flow. Taxes, transaction costs, tax deductions and local rules are not automatically included.
Interactive tool
Commercial property rent and yield model
Estimate required gross rent from target net operating income, vacancy, costs and financing.
Enter values and calculate.
Define consistently whether the target is an unlevered property yield or a return on equity. Excludes tax, depreciation, acquisition costs and tenant-specific adjustments.